I find they only smell a bit similar for a short period, with the mid-stage of Cool Water. Other than that, while there's a similar "vibe" to the scents, I don't find them identical by any means. Is it worth it to pick up GIT if you have & like Cool Water? Absolutely, IMO!! I did and now find I basically never wear CW because I find GIT far superior in every way. GIT is fresher, richer, brighter, & much longer lasting. To me, the opening & dry-down of GIT completely blows CW out of the water. Not even a contest IMO. If you really like CW, you'll likely fall in LOVE with GIT & the more you use it, the more you'll appreciate it the greater differences you'll start to see between the two.